Urinary Excretion and External Radiation Dose from Patients Administered with Radiopharmaceuticals

Konishi, Eiko; Abe, Kazumasa; Kusama, Tomoko

doi:10.1093/oxfordjournals.rpd.a082317

Cited by 1 publication

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“…The average values and standard deviations used for fitting the source line model are also given in Table 1 Tc bone scan data set. We retrieved 16 studies (Castronovo 1991;Mountford et al 1991;Konishi et al 1994;Havlik et al 1996;Greaves and Tindale 1999;Gomez-Palacios et al 2005;Lemoine et al 2011;Sudbrock et al 2011;Bartlett 2013;Kim et al 2013;Stenstad et al 2014;Fayad et al 2015;Morán et al 2016;Javed et al 2017;Ohiduzzaman et al 2019;Das and Mondal 2020) providing the required data. The number of patients per study was between 6 and 145.…”

Section: Collected Datamentioning

confidence: 99%

The Nuclear Medicine Patient as a Line Source: The Source Length Is Certainly Not the Patient Height, But It Is a Reasonable Approximation

Broggio

2022

Health Physics

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Nuclear medicine patients are a source of exposure and should receive instructions to restrict contact time with different categories of people. The calculation of the restriction time requires that the dose rate at a given distance, known from an initial measurement and a whole-body retention function, can be extrapolated at other distances. As a basis for this extrapolation, it has been suggested to consider the patient as a line source. However, the validity of this suggestion is based on a few studies and limited measurement distances. We collected from the literature dose rates of nuclear medicine patients measured at different distances and investigated the robustness of the line source model. The cases of 18F-FDG exams, 99mTc bone scan exams, and 131I for hyperthyroidism treatment and remnants ablation were considered. The data were pooled, different cases of measurement time after administration were considered, and the data were fitted according to the line source model in which the half patient thickness was introduced. It was found that the line source model fits well the data put with a source length that is radionuclide-specific and significantly different from the standard adult height. However, considering a standard source length of 176 cm and neglecting the patient thickness induced at maximum an overestimation by a factor of 2.5 when extrapolating from 1 m to 10 cm. Such an overestimation is not of considerable importance in the calculation of contact restriction times.

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Section: Collected Datamentioning

confidence: 99%

The Nuclear Medicine Patient as a Line Source: The Source Length Is Certainly Not the Patient Height, But It Is a Reasonable Approximation

Broggio

2022

Health Physics

View full text Add to dashboard Cite

show abstract

Urinary Excretion and External Radiation Dose from Patients Administered with Radiopharmaceuticals

Cited by 1 publication

References 0 publications

The Nuclear Medicine Patient as a Line Source: The Source Length Is Certainly Not the Patient Height, But It Is a Reasonable Approximation

The Nuclear Medicine Patient as a Line Source: The Source Length Is Certainly Not the Patient Height, But It Is a Reasonable Approximation

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